The director of communications for the non-profit Citizen Schools, Colin Stokes thinks deeply about the media he shares with his two young children.

A co-founder of Movember, Adam Garone aims to change the face of men's health.

Sculptor, painter and printmaker Alwar Balasubramaniam makes work that crosses the boundary between art, perception and life.

Paul Romer's research on catch-up growth in low- and middle-income countries has emphasized the importance of government policies that encourage orderly urban expansion.

Natasha Hurley-Walker uses novel radio telescopes to explore the universe at some of the longest wavelengths of light.

Michael Merzenich studies neuroplasticity -- the brain's powerful ability to change itself and adapt -- and ways we might make use of that plasticity to heal injured brains and enhance the skills in healthy ones.

Mark Shaw develops technologies to contain hazardous waste, storm water and radioactives.

Ian Kerner is a licensed psychotherapist, nationally recognized sexuality counselor and best-selling author.

Engineer and daredevil cave explorer Bill Stone is obsessed with discovery -- on Earth and beyond.

Tania Luna is the co-CEO of LifeLabs Learning and co-host of the podcast "Talk Psych to Me."

University student Ione Wells is the founder of the international #NotGuilty campaign against sexual violence and misdirected victim blaming.

Linda Hill studies collective genius -- the way great companies, and great leaders, empower creativity from many.

Dr. Laura Robinson's scientific mission is to document and understand the processes that govern climate.

Gus Casely-Hayford writes, lectures, curates and broadcasts about African culture.

Amy Green creates narrative video games that focus on innovative stories.

Jinsop Lee is an industrial designer who believes that great design appeals to all five senses.

Heather Lanier illuminates truths about the human condition that speak to both the head and the heart.

Mandë Holford investigates the power of venom to transform organisms (and lives) when it is adapted to create new therapeutics that treat human diseases and disorders.

A writer and a part-time cyborg, Rebecca Knill embraces the humor in her bionic journey while balancing life as a deaf person with cochlear implants which enable her to hear.

Katharine Wilkinson is transforming how we see and relate to the earth. As a writer and messenger, she brings humanity and heart to the challenge of climate change and invites us to be awake, aware and active participants in the community of life.

Cindy Gallop has turned her illustrious advertising career into a lifelong pursuit of changing the world, her way -- one daring project after another.

Pamela Meyer thinks we’re facing a pandemic of deception, but she’s arming people with tools that can help take back the truth.

Harvard Medical School psychologist Susan David studies emotional agility: the psychology of how we can use emotion to bring forward our best selves in all aspects of how we love, live, parent and lead.

Holly Morris tells the stories of women around the world through documentary, television, print and the web.

Known for his unusual approach to everyday issues, Andri Snær Magnason is a storyteller and environmental activist.

Mia Birdsong advocates for strong communities and the self-determination of everyday people.

Through her art and writing, Kim Katrin Milan advocates for queer, trans and feminist issues. Now she’s using her own love story to help bridge communities.

Kathryn Bouskill's work explores how our health is shaped as much by our biology as it is by our behaviors and cultural contexts.

Amber Galloway-Gallego is a world-renowned ASL interpreter specializing in music.

Deb Roy studies how children learn language, and designs machines that learn to communicate in human-like ways. On sabbatical from MIT Media Lab, he's working with the AI company Bluefin Labs.